Sodium phosphide

Sodium phosphide
Names
	Other names sodium phosphide, ; trisodiophosphine
Identifiers
CAS Number	12058-85-4 ;
3D model (JSmol)	Interactive image;
ChemSpider	55463 ;
ECHA InfoCard	100.031.834
EC Number	235-031-0;
PubChem CID	61547;
UNII	A360RQX9W2 ;
	InChI InChI=1S/3Na.P/q3+1;-3 Key: FHHBFSHDCCEUKM-UHFFFAOYSA-N ; InChI=1/3Na.P/q3+1;-3 Key: FHHBFSHDCCEUKM-UHFFFAOYAE;
	SMILES [Na+].[Na+].[Na+].[P-3];
Properties
Chemical formula	Na3P
Molar mass	99.943 g/mol
Appearance	red crystals
Density	1.74 g/cm3
Melting point	650 °C (1,202 °F; 923 K)
Solubility in water	hydrolysis
Solubility	insoluble in liquid CO2
Structure
Crystal structure	hexagonal; a = 4.9512 Å; c = 8.7874 Å
Coordination geometry	around P 5 near neighbours, trigonal bipyramid
Related compounds
Other anions	sodium arsenide; sodium nitride
Other cations	aluminium phosphide; lithium phosphide; potassium phosphide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Sodium phosphide is the inorganic compound with the formula Na₃P. It is a black solid. It is often described as Na⁺ salt of the P³⁻ anion. Na₃P is a source of the highly reactive phosphide anion. It should not be confused with sodium phosphate, Na₃PO₄.

In addition to Na₃P, five other binary compositions of sodium and phosphorus are known: NaP, Na₃P₇, Na₃P₁₁, NaP₇, and NaP₁₅.

Names

Other names sodium phosphide, trisodiophosphine
Identifiers
CAS Number	12058-85-4^Y
3D model (JSmol)	Interactive image
ChemSpider	55463^Y
ECHA InfoCard	100.031.834
EC Number	235-031-0
PubChem CID	61547
UNII	A360RQX9W2^Y
InChI InChI=1S/3Na.P/q3+1;-3^Y Key: FHHBFSHDCCEUKM-UHFFFAOYSA-N^Y InChI=1/3Na.P/q3+1;-3 Key: FHHBFSHDCCEUKM-UHFFFAOYAE
SMILES [Na+].[Na+].[Na+].[P-3]
Properties
Chemical formula	Na₃P
Molar mass	99.943 g/mol
Appearance	red crystals
Density	1.74 g/cm³
Melting point	650 °C (1,202 °F; 923 K)
Solubility in water	hydrolysis
Solubility	insoluble in liquid CO₂
Structure
Crystal structure	hexagonal a = 4.9512 Å c = 8.7874 Å
Coordination geometry	around P 5 near neighbours, trigonal bipyramid
Related compounds
Other anions	sodium arsenide sodium nitride
Other cations	aluminium phosphide lithium phosphide potassium phosphide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references